SFM3003-300-CL

Versatile low pressure drop digital flow sensor, 300 slm, with cap

Specification

Gas flow
Full scale flow rate
-30 - 300
slm
Typical accuracy
±2% m.v.
Calibration
Air, O₂ and mixtures thereof
Sensor output
Flow and T
Maximum operating pressure
1.3
bar
Fluidic connector ports
Medical cone (22 mm)
Generic
Supply voltage
2.7 - 5.5
V
Average supply current
3800
uA
Max. supply current
5500
uA
Interfaces
I²C
Package size (LxWxH)
39 x 29 x 5
mm³

Technical downloads

Name
Type
Date
File
Size
Datasheet SFM3003
Datasheet
07/2021
PDF
1.4 MB
STEP file SFM3003, SFM3019, SFM3020
CAD
10/2021
STEP
3.7 MB
Handling instructions SFM3xxx
Application note
01/2021
PDF
141.7 KB
Reference and flow conversions
Application note
09/2021
PDF
293.7 KB
Reference and flow conversions calculator
Application note
10/2021
XLSX
30.3 KB
STEP file SFM3000
CAD
10/2021
STEP
2.2 MB
Product flyer medical applications SFM3000
Flyer
10/2021
PDF
183.1 KB
Engineering guide SFM
User guide
01/2021
PDF
592.1 KB
REACH and RoHS declaration SFM/SGM
Certificate
07/2022
PDF
99.6 KB
Product flyer SFM
Flyer
08/2021
PDF
1013.9 KB

Buy the following products to evaluate this sensor

The SFM3003 mass flow meter is Sensirion’s next-generation flow meter. Technically it is based on the SFM3019 meter that was brought onto the market during the Covid-19 pandemic to provide high volumes of flow meters for inspiratory flow measurements in medical ventilators. Compared to the SFM3019, the SFM3003 comes with a wider flow range as well as improved specifications.

The flow of air, oxygen and mixtures thereof at rates between -30 and 300 slm is measured with excellent accuracy, reliability and long-term stability, and no recalibration is needed. The SFM3003 outputs an easily integrable digital I2C interface. The signal is internally linearized and temperature compensated. Furthermore, the SFM3003 flow meter has a very low pressure drop, ultra-fast response time and optimal signal-to-noise ratio.

As part of the SFM3xxx platform, the SFM3003 is a versatile sensor solution for many different high-volume applications in which cost efficiency is the priority. The outstanding performance of the SFM3003 sensor is based on Sensirion’s patented CMOSens® Technology, which combines the sensor element, signal processing and digital calibration on a tiny microchip. The gas is measured by a thermal sensor element to provide an extended dynamic range and enhanced long-term stability compared to other flow-measuring technologies. Thanks to this proven CMOSens® Technology, the flow meter is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.

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